Sizing.



UNITED STATES Patented May 19, 1903.

PATENT OFFICE.

SIZING.

SPECIFICATION forming part of Letters Patent N 0. 728,697, dated May 19,1903.

I Application filed February 27,1903. Serial No. 145,420. (Nospecimens.)

To aZZ whom it may concern.-

Be it known that I, GEORGE A. FREDEN- BURGH, a citizen of the UnitedStates, residing at the city of Pawtucket, in the county of Providenceand State of Rhode Island, have invented a certain new and usefulImprovement in Composition of Matter to be Used for Sizing Yarn orThread as it is Twisted and Polished on Thread Machinery, of which thefollowing is a specification.

My composition of matter consists of the following ingredients, combinedin the proportions stated, viz: water substantially pure, forty gallons;potato-starch, seventeen pounds; oxid of tin, one-half pound; oxid ofzinc, one-half pound.

The above ingredients are steamed until they thicken and bubble, afterwhich the following proportions of ingredients are mixed with the saidproportion of parts: wood-a1- cohol, one-half pint; naphtha, one-halfpint; caustic soda of one and one-half degrees of strength, one-halfpint.

The proportion of wood-alcohol is mixed with the first proportion ofparts for one minute. The proportion of naphtha is then mixed with thefirst proportion of parts and wood-alcohol for two minutes, after whichthe proportion of caustic soda is mixed with the first proportion ofparts, wood-a1coho1,and naphtha for one minute. The yarn or thread to besized by this composition of matter is of a dull-gray color and containsa certain percentage of dye, so that in the use of this mixture thesizing emulsion acts upon and softens up the dye in the thread andbrings out a jet-black color.

This invention is adapted for use on the thread,- dressing machine shownand described in Letters Patent of the United States No. 702,786, issuedto me June 17, 1902.

What I claim, and desire to secure by Let ters Patent, is-

1. The herein described composition of matter, consisting of water,potato-starch, oxid of tin, oxid of zinc, said parts mixed withwood-alcohol, naphtha, and caustic soda, substantially as described andfor the purpose specified.

2. The herein-described composition of matter for dyeing yarn or thread,consisting of pure water forty gallons, potato-starch seventeen pounds,oxid of tin one half pound, oxid of zinc one-half pound, saidingredients steamed and mixed with wood-alcohol onehalf pint, naphthaone-half pint, and caustic soda one-half pint, substantially asdescribed.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE A. FREDENBURGH. Witnesses:

ELMER WALKER, DANIEL E. LOOKE.

